/Engine/Plugins/Online/OnlineFramework/Source/Party/Public/Party/PartyMember.h
typedef typename [TChooseClass](API\Runtime\Core\Templates\TChooseClass)< [TOr](API\Runtime\Core\Templates\TOr)< [TIsPODType](API\Runtime\Core\Math\TIsPODType)< [FSessionId](API\Plugins\Party\Party\FSessionId) >, [TIsPointer](API\Runtime\Core\Templates\TIsPointer)< [FSessionId](API\Plugins\Party\Party\FSessionId) >>::Value, [FSessionId](API\Plugins\Party\Party\FSessionId), const [MutablePlatformDataSessionIdType](API\Plugins\Party\Party\FPartyMemberRepData\MutablePlatformDataSessionIdType) & >::Result PlatformDataSessionIdArgType